1 /**************************************************************************** 2 * Copyright 2020-2021,2024 Thomas E. Dickey * 3 * Copyright 1998-2016,2017 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 32 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 33 * and: Thomas E. Dickey 1996-on * 34 ****************************************************************************/ 35 36 /* 37 * Notes: 38 * The initial adaptation from 4.4BSD Lite sources in September 1995 used 686 39 * lines from that version, and made changes/additions for 150 lines. There 40 * was no reformatting, so with/without ignoring whitespace, the amount of 41 * change is the same. 42 * 43 * Comparing with current (2009) source, excluding this comment: 44 * a) 209 lines match identically to the 4.4BSD Lite sources, with 771 lines 45 * changed/added. 46 * a) Ignoring whitespace, the current version still uses 516 lines from the 47 * 4.4BSD Lite sources, with 402 lines changed/added. 48 * 49 * Raymond's original comment on this follows... 50 */ 51 52 /* 53 * tset.c - terminal initialization utility 54 * 55 * This code was mostly swiped from 4.4BSD tset, with some obsolescent 56 * cruft removed and substantial portions rewritten. A Regents of the 57 * University of California copyright applies to some portions of the 58 * code, and is reproduced below: 59 */ 60 /*- 61 * Copyright (c) 1980, 1991, 1993 62 * The Regents of the University of California. All rights reserved. 63 * 64 * Redistribution and use in source and binary forms, with or without 65 * modification, are permitted provided that the following conditions 66 * are met: 67 * 1. Redistributions of source code must retain the above copyright 68 * notice, this list of conditions and the following disclaimer. 69 * 2. Redistributions in binary form must reproduce the above copyright 70 * notice, this list of conditions and the following disclaimer in the 71 * documentation and/or other materials provided with the distribution. 72 * 3. Neither the name of the University nor the names of its contributors 73 * may be used to endorse or promote products derived from this software 74 * without specific prior written permission. 75 * 76 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 77 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 78 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 79 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 80 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 81 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 82 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 83 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 84 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 85 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 86 * SUCH DAMAGE. 87 */ 88 89 #include <reset_cmd.h> 90 #include <termcap.h> 91 #include <transform.h> 92 #include <tty_settings.h> 93 94 #if HAVE_GETTTYNAM 95 #include <ttyent.h> 96 #endif 97 #ifdef NeXT 98 char *ttyname(int fd); 99 #endif 100 101 MODULE_ID("$Id: tset.c,v 1.135 2024/04/20 22:20:41 tom Exp $") 102 103 #ifndef environ 104 extern char **environ; 105 #endif 106 107 const char *_nc_progname = "tset"; 108 109 #define LOWERCASE(c) ((isalpha(UChar(c)) && isupper(UChar(c))) ? tolower(UChar(c)) : (c)) 110 111 static GCC_NORETURN void exit_error(void); 112 113 static int 114 CaselessCmp(const char *a, const char *b) 115 { /* strcasecmp isn't portable */ 116 while (*a && *b) { 117 int cmp = LOWERCASE(*a) - LOWERCASE(*b); 118 if (cmp != 0) 119 break; 120 a++, b++; 121 } 122 return LOWERCASE(*a) - LOWERCASE(*b); 123 } 124 125 static GCC_NORETURN void 126 exit_error(void) 127 { 128 restore_tty_settings(); 129 (void) fprintf(stderr, "\n"); 130 fflush(stderr); 131 ExitProgram(EXIT_FAILURE); 132 /* NOTREACHED */ 133 } 134 135 static GCC_NORETURN void 136 err(const char *fmt, ...) 137 { 138 va_list ap; 139 va_start(ap, fmt); 140 (void) fprintf(stderr, "%s: ", _nc_progname); 141 (void) vfprintf(stderr, fmt, ap); 142 va_end(ap); 143 exit_error(); 144 /* NOTREACHED */ 145 } 146 147 static GCC_NORETURN void 148 failed(const char *msg) 149 { 150 char temp[BUFSIZ]; 151 size_t len = strlen(_nc_progname) + 2; 152 153 if ((int) len < (int) sizeof(temp) - 12) { 154 _nc_STRCPY(temp, _nc_progname, sizeof(temp)); 155 _nc_STRCAT(temp, ": ", sizeof(temp)); 156 } else { 157 _nc_STRCPY(temp, "tset: ", sizeof(temp)); 158 } 159 _nc_STRNCAT(temp, msg, sizeof(temp), sizeof(temp) - strlen(temp) - 2); 160 perror(temp); 161 exit_error(); 162 /* NOTREACHED */ 163 } 164 165 /* Prompt the user for a terminal type. */ 166 static const char * 167 askuser(const char *dflt) 168 { 169 static char answer[256]; 170 171 /* We can get recalled; if so, don't continue uselessly. */ 172 clearerr(stdin); 173 if (feof(stdin) || ferror(stdin)) { 174 (void) fprintf(stderr, "\n"); 175 exit_error(); 176 /* NOTREACHED */ 177 } 178 179 for (;;) { 180 char *p; 181 182 if (dflt) 183 (void) fprintf(stderr, "Terminal type? [%s] ", dflt); 184 else 185 (void) fprintf(stderr, "Terminal type? "); 186 (void) fflush(stderr); 187 188 if (fgets(answer, sizeof(answer), stdin) == 0) { 189 if (dflt == 0) { 190 exit_error(); 191 /* NOTREACHED */ 192 } 193 return (dflt); 194 } 195 196 if ((p = strchr(answer, '\n')) != 0) 197 *p = '\0'; 198 if (answer[0]) 199 return (answer); 200 if (dflt != 0) 201 return (dflt); 202 } 203 } 204 205 /************************************************************************** 206 * 207 * Mapping logic begins here 208 * 209 **************************************************************************/ 210 211 /* Baud rate conditionals for mapping. */ 212 #define GT 0x01 213 #define EQ 0x02 214 #define LT 0x04 215 #define NOT 0x08 216 #define GE (GT | EQ) 217 #define LE (LT | EQ) 218 219 typedef struct map { 220 struct map *next; /* Linked list of maps. */ 221 const char *porttype; /* Port type, or "" for any. */ 222 const char *type; /* Terminal type to select. */ 223 int conditional; /* Baud rate conditionals bitmask. */ 224 int speed; /* Baud rate to compare against. */ 225 } MAP; 226 227 static MAP *cur, *maplist; 228 229 #define DATA(name,value) { { name }, value } 230 231 typedef struct speeds { 232 const char string[8]; 233 int speed; 234 } SPEEDS; 235 236 #if defined(EXP_WIN32_DRIVER) 237 static const SPEEDS speeds[] = 238 { 239 {"0", 0} 240 }; 241 #else 242 static const SPEEDS speeds[] = 243 { 244 DATA("0", B0), 245 DATA("50", B50), 246 DATA("75", B75), 247 DATA("110", B110), 248 DATA("134", B134), 249 DATA("134.5", B134), 250 DATA("150", B150), 251 DATA("200", B200), 252 DATA("300", B300), 253 DATA("600", B600), 254 DATA("1200", B1200), 255 DATA("1800", B1800), 256 DATA("2400", B2400), 257 DATA("4800", B4800), 258 DATA("9600", B9600), 259 /* sgttyb may define up to this point */ 260 #ifdef B19200 261 DATA("19200", B19200), 262 #endif 263 #ifdef B38400 264 DATA("38400", B38400), 265 #endif 266 #ifdef B19200 267 DATA("19200", B19200), 268 #endif 269 #ifdef B38400 270 DATA("38400", B38400), 271 #endif 272 #ifdef B19200 273 DATA("19200", B19200), 274 #else 275 #ifdef EXTA 276 DATA("19200", EXTA), 277 #endif 278 #endif 279 #ifdef B38400 280 DATA("38400", B38400), 281 #else 282 #ifdef EXTB 283 DATA("38400", EXTB), 284 #endif 285 #endif 286 #ifdef B57600 287 DATA("57600", B57600), 288 #endif 289 #ifdef B76800 290 DATA("76800", B57600), 291 #endif 292 #ifdef B115200 293 DATA("115200", B115200), 294 #endif 295 #ifdef B153600 296 DATA("153600", B153600), 297 #endif 298 #ifdef B230400 299 DATA("230400", B230400), 300 #endif 301 #ifdef B307200 302 DATA("307200", B307200), 303 #endif 304 #ifdef B460800 305 DATA("460800", B460800), 306 #endif 307 #ifdef B500000 308 DATA("500000", B500000), 309 #endif 310 #ifdef B576000 311 DATA("576000", B576000), 312 #endif 313 #ifdef B921600 314 DATA("921600", B921600), 315 #endif 316 #ifdef B1000000 317 DATA("1000000", B1000000), 318 #endif 319 #ifdef B1152000 320 DATA("1152000", B1152000), 321 #endif 322 #ifdef B1500000 323 DATA("1500000", B1500000), 324 #endif 325 #ifdef B2000000 326 DATA("2000000", B2000000), 327 #endif 328 #ifdef B2500000 329 DATA("2500000", B2500000), 330 #endif 331 #ifdef B3000000 332 DATA("3000000", B3000000), 333 #endif 334 #ifdef B3500000 335 DATA("3500000", B3500000), 336 #endif 337 #ifdef B4000000 338 DATA("4000000", B4000000), 339 #endif 340 }; 341 #undef DATA 342 #endif 343 344 static int 345 tbaudrate(char *rate) 346 { 347 const SPEEDS *sp = 0; 348 size_t n; 349 350 /* The baudrate number can be preceded by a 'B', which is ignored. */ 351 if (*rate == 'B') 352 ++rate; 353 354 for (n = 0; n < SIZEOF(speeds); ++n) { 355 if (n > 0 && (speeds[n].speed <= speeds[n - 1].speed)) { 356 /* if the speeds are not increasing, likely a numeric overflow */ 357 break; 358 } 359 if (!CaselessCmp(rate, speeds[n].string)) { 360 sp = speeds + n; 361 break; 362 } 363 } 364 if (sp == 0) 365 err("unknown baud rate %s", rate); 366 return (sp->speed); 367 } 368 369 /* 370 * Syntax for -m: 371 * [port-type][test baudrate]:terminal-type 372 * The baud rate tests are: >, <, @, =, ! 373 */ 374 static void 375 add_mapping(const char *port, char *arg) 376 { 377 MAP *mapp; 378 char *copy, *p; 379 const char *termp; 380 char *base = 0; 381 382 copy = strdup(arg); 383 mapp = typeMalloc(MAP, 1); 384 if (copy == 0 || mapp == 0) 385 failed("malloc"); 386 387 assert(copy != 0); 388 assert(mapp != 0); 389 390 mapp->next = 0; 391 if (maplist == 0) 392 cur = maplist = mapp; 393 else { 394 cur->next = mapp; 395 cur = mapp; 396 } 397 398 mapp->porttype = arg; 399 mapp->conditional = 0; 400 401 arg = strpbrk(arg, "><@=!:"); 402 403 if (arg == 0) { /* [?]term */ 404 mapp->type = mapp->porttype; 405 mapp->porttype = 0; 406 goto done; 407 } 408 409 if (arg == mapp->porttype) /* [><@=! baud]:term */ 410 termp = mapp->porttype = 0; 411 else 412 termp = base = arg; 413 414 for (;; ++arg) { /* Optional conditionals. */ 415 switch (*arg) { 416 case '<': 417 if (mapp->conditional & GT) 418 goto badmopt; 419 mapp->conditional |= LT; 420 break; 421 case '>': 422 if (mapp->conditional & LT) 423 goto badmopt; 424 mapp->conditional |= GT; 425 break; 426 case '@': 427 case '=': /* Not documented. */ 428 mapp->conditional |= EQ; 429 break; 430 case '!': 431 mapp->conditional |= NOT; 432 break; 433 default: 434 goto next; 435 } 436 } 437 438 next: 439 if (*arg == ':') { 440 if (mapp->conditional) 441 goto badmopt; 442 ++arg; 443 } else { /* Optional baudrate. */ 444 arg = strchr(p = arg, ':'); 445 if (arg == 0) 446 goto badmopt; 447 *arg++ = '\0'; 448 mapp->speed = tbaudrate(p); 449 } 450 451 mapp->type = arg; 452 453 /* Terminate porttype, if specified. */ 454 if (termp != 0) 455 *base = '\0'; 456 457 /* If a NOT conditional, reverse the test. */ 458 if (mapp->conditional & NOT) 459 mapp->conditional = ~mapp->conditional & (EQ | GT | LT); 460 461 /* If user specified a port with an option flag, set it. */ 462 done: 463 if (port) { 464 if (mapp->porttype) { 465 badmopt: 466 err("illegal -m option format: %s", copy); 467 } 468 mapp->porttype = port; 469 } 470 free(copy); 471 #ifdef MAPDEBUG 472 (void) printf("port: %s\n", mapp->porttype ? mapp->porttype : "ANY"); 473 (void) printf("type: %s\n", mapp->type); 474 (void) printf("conditional: "); 475 p = ""; 476 if (mapp->conditional & GT) { 477 (void) printf("GT"); 478 p = "/"; 479 } 480 if (mapp->conditional & EQ) { 481 (void) printf("%sEQ", p); 482 p = "/"; 483 } 484 if (mapp->conditional & LT) 485 (void) printf("%sLT", p); 486 (void) printf("\nspeed: %d\n", mapp->speed); 487 #endif 488 } 489 490 /* 491 * Return the type of terminal to use for a port of type 'type', as specified 492 * by the first applicable mapping in 'map'. If no mappings apply, return 493 * 'type'. 494 */ 495 static const char * 496 mapped(const char *type) 497 { 498 MAP *mapp; 499 int match; 500 501 for (mapp = maplist; mapp; mapp = mapp->next) 502 if (mapp->porttype == 0 || !strcmp(mapp->porttype, type)) { 503 switch (mapp->conditional) { 504 case 0: /* No test specified. */ 505 match = TRUE; 506 break; 507 case EQ: 508 match = ((int) ospeed == mapp->speed); 509 break; 510 case GE: 511 match = ((int) ospeed >= mapp->speed); 512 break; 513 case GT: 514 match = ((int) ospeed > mapp->speed); 515 break; 516 case LE: 517 match = ((int) ospeed <= mapp->speed); 518 break; 519 case LT: 520 match = ((int) ospeed < mapp->speed); 521 break; 522 default: 523 match = FALSE; 524 } 525 if (match) 526 return (mapp->type); 527 } 528 /* No match found; return given type. */ 529 return (type); 530 } 531 532 /************************************************************************** 533 * 534 * Entry fetching 535 * 536 **************************************************************************/ 537 538 /* 539 * Figure out what kind of terminal we're dealing with, and then read in 540 * its termcap entry. 541 */ 542 static const char * 543 get_termcap_entry(int fd, char *userarg) 544 { 545 int errret; 546 char *p; 547 const char *ttype; 548 #if HAVE_PATH_TTYS 549 #if HAVE_GETTTYNAM 550 struct ttyent *t; 551 #else 552 FILE *fp; 553 #endif 554 char *ttypath; 555 #endif /* HAVE_PATH_TTYS */ 556 557 (void) fd; 558 559 if (userarg) { 560 ttype = userarg; 561 goto found; 562 } 563 564 /* Try the environment. */ 565 if ((ttype = getenv("TERM")) != 0) 566 goto map; 567 568 #if HAVE_PATH_TTYS 569 if ((ttypath = ttyname(fd)) != 0) { 570 p = _nc_basename(ttypath); 571 #if HAVE_GETTTYNAM 572 /* 573 * We have the 4.3BSD library call getttynam(3); that means 574 * there's an /etc/ttys to look up device-to-type mappings in. 575 * Try ttyname(3); check for dialup or other mapping. 576 */ 577 if ((t = getttynam(p))) { 578 ttype = t->ty_type; 579 goto map; 580 } 581 #else 582 if ((fp = fopen("/etc/ttytype", "r")) != 0 583 || (fp = fopen("/etc/ttys", "r")) != 0) { 584 char buffer[BUFSIZ]; 585 char *s, *t, *d; 586 587 while (fgets(buffer, sizeof(buffer) - 1, fp) != 0) { 588 for (s = buffer, t = d = 0; *s; s++) { 589 if (isspace(UChar(*s))) 590 *s = '\0'; 591 else if (t == 0) 592 t = s; 593 else if (d == 0 && s != buffer && s[-1] == '\0') 594 d = s; 595 } 596 if (t != 0 && d != 0 && !strcmp(d, p)) { 597 ttype = strdup(t); 598 fclose(fp); 599 goto map; 600 } 601 } 602 fclose(fp); 603 } 604 #endif /* HAVE_GETTTYNAM */ 605 } 606 #endif /* HAVE_PATH_TTYS */ 607 608 /* If still undefined, use "unknown". */ 609 ttype = "unknown"; 610 611 map:ttype = mapped(ttype); 612 613 /* 614 * If not a path, remove TERMCAP from the environment so we get a 615 * real entry from /etc/termcap. This prevents us from being fooled 616 * by out of date stuff in the environment. 617 */ 618 found: 619 if ((p = getenv("TERMCAP")) != 0 && !_nc_is_abs_path(p)) { 620 /* 'unsetenv("TERMCAP")' is not portable. 621 * The 'environ' array is better. 622 */ 623 int n; 624 for (n = 0; environ[n] != 0; n++) { 625 if (!strncmp("TERMCAP=", environ[n], (size_t) 8)) { 626 while ((environ[n] = environ[n + 1]) != 0) { 627 n++; 628 } 629 break; 630 } 631 } 632 } 633 634 /* 635 * ttype now contains a pointer to the type of the terminal. 636 * If the first character is '?', ask the user. 637 */ 638 if (ttype[0] == '?') { 639 if (ttype[1] != '\0') 640 ttype = askuser(ttype + 1); 641 else 642 ttype = askuser(0); 643 } 644 /* Find the terminfo entry. If it doesn't exist, ask the user. */ 645 while (setupterm((NCURSES_CONST char *) ttype, fd, &errret) 646 != OK) { 647 if (errret == 0) { 648 (void) fprintf(stderr, "%s: unknown terminal type %s\n", 649 _nc_progname, ttype); 650 ttype = 0; 651 } else { 652 (void) fprintf(stderr, 653 "%s: can't initialize terminal type %s (error %d)\n", 654 _nc_progname, ttype, errret); 655 ttype = 0; 656 } 657 ttype = askuser(ttype); 658 } 659 #if BROKEN_LINKER 660 tgetflag("am"); /* force lib_termcap.o to be linked for 'ospeed' */ 661 #endif 662 return (ttype); 663 } 664 665 /************************************************************************** 666 * 667 * Main sequence 668 * 669 **************************************************************************/ 670 671 /* 672 * Convert the obsolete argument forms into something that getopt can handle. 673 * This means that -e, -i and -k get default arguments supplied for them. 674 */ 675 static void 676 obsolete(char **argv) 677 { 678 for (; *argv; ++argv) { 679 char *parm = argv[0]; 680 681 if (parm[0] == '-' && parm[1] == '\0') { 682 argv[0] = strdup("-q"); 683 continue; 684 } 685 686 if ((parm[0] != '-') 687 || (argv[1] && argv[1][0] != '-') 688 || (parm[1] != 'e' && parm[1] != 'i' && parm[1] != 'k') 689 || (parm[2] != '\0')) 690 continue; 691 switch (argv[0][1]) { 692 case 'e': 693 argv[0] = strdup("-e^H"); 694 break; 695 case 'i': 696 argv[0] = strdup("-i^C"); 697 break; 698 case 'k': 699 argv[0] = strdup("-k^U"); 700 break; 701 } 702 } 703 } 704 705 static void 706 print_shell_commands(const char *ttype) 707 { 708 const char *p; 709 int len; 710 char *var; 711 char *leaf; 712 /* 713 * Figure out what shell we're using. A hack, we look for an 714 * environmental variable SHELL ending in "csh". 715 */ 716 if ((var = getenv("SHELL")) != 0 717 && ((len = (int) strlen(leaf = _nc_basename(var))) >= 3) 718 && !strcmp(leaf + len - 3, "csh")) 719 p = "set noglob;\nsetenv TERM %s;\nunset noglob;\n"; 720 else 721 p = "TERM=%s;\n"; 722 (void) printf(p, ttype); 723 } 724 725 static void 726 usage(void) 727 { 728 #define SKIP(s) /* nothing */ 729 #define KEEP(s) s "\n" 730 static const char msg[] = 731 { 732 KEEP("") 733 KEEP("Options:") 734 SKIP(" -a arpanet (obsolete)") 735 KEEP(" -c set control characters") 736 SKIP(" -d dialup (obsolete)") 737 KEEP(" -e ch erase character") 738 KEEP(" -I no initialization strings") 739 KEEP(" -i ch interrupt character") 740 KEEP(" -k ch kill character") 741 KEEP(" -m mapping map identifier to type") 742 SKIP(" -p plugboard (obsolete)") 743 KEEP(" -Q do not output control key settings") 744 KEEP(" -q display term only, do no changes") 745 KEEP(" -r display term on stderr") 746 SKIP(" -S (obsolete)") 747 KEEP(" -s output TERM set command") 748 KEEP(" -V print curses-version") 749 KEEP(" -w set window-size") 750 KEEP("") 751 KEEP("If neither -c/-w are given, both are assumed.") 752 }; 753 #undef KEEP 754 #undef SKIP 755 (void) fprintf(stderr, "Usage: %s [options] [terminal]\n", _nc_progname); 756 fputs(msg, stderr); 757 ExitProgram(EXIT_FAILURE); 758 /* NOTREACHED */ 759 } 760 761 static char 762 arg_to_char(void) 763 { 764 return (char) ((optarg[0] == '^' && optarg[1] != '\0') 765 ? ((optarg[1] == '?') ? '\177' : CTRL(optarg[1])) 766 : optarg[0]); 767 } 768 769 int 770 main(int argc, char **argv) 771 { 772 int ch, noinit, noset, quiet, Sflag, sflag, showterm; 773 const char *ttype; 774 int terasechar = -1; /* new erase character */ 775 int intrchar = -1; /* new interrupt character */ 776 int tkillchar = -1; /* new kill character */ 777 int my_fd; 778 bool opt_c = FALSE; /* set control-chars */ 779 bool opt_w = FALSE; /* set window-size */ 780 TTY mode, oldmode; 781 782 _nc_progname = _nc_rootname(*argv); 783 obsolete(argv); 784 noinit = noset = quiet = Sflag = sflag = showterm = 0; 785 while ((ch = getopt(argc, argv, "a:cd:e:Ii:k:m:p:qQrSsVw")) != -1) { 786 switch (ch) { 787 case 'c': /* set control-chars */ 788 opt_c = TRUE; 789 break; 790 case 'a': /* OBSOLETE: map identifier to type */ 791 add_mapping("arpanet", optarg); 792 break; 793 case 'd': /* OBSOLETE: map identifier to type */ 794 add_mapping("dialup", optarg); 795 break; 796 case 'e': /* erase character */ 797 terasechar = arg_to_char(); 798 break; 799 case 'I': /* no initialization strings */ 800 noinit = 1; 801 break; 802 case 'i': /* interrupt character */ 803 intrchar = arg_to_char(); 804 break; 805 case 'k': /* kill character */ 806 tkillchar = arg_to_char(); 807 break; 808 case 'm': /* map identifier to type */ 809 add_mapping(0, optarg); 810 break; 811 case 'p': /* OBSOLETE: map identifier to type */ 812 add_mapping("plugboard", optarg); 813 break; 814 case 'Q': /* don't output control key settings */ 815 quiet = 1; 816 break; 817 case 'q': /* display term only */ 818 noset = 1; 819 break; 820 case 'r': /* display term on stderr */ 821 showterm = 1; 822 break; 823 case 'S': /* OBSOLETE: output TERM & TERMCAP */ 824 Sflag = 1; 825 break; 826 case 's': /* output TERM set command */ 827 sflag = 1; 828 break; 829 case 'V': /* print curses-version */ 830 puts(curses_version()); 831 ExitProgram(EXIT_SUCCESS); 832 case 'w': /* set window-size */ 833 opt_w = TRUE; 834 break; 835 case '?': 836 default: 837 usage(); 838 } 839 } 840 841 argc -= optind; 842 argv += optind; 843 844 if (argc > 1) 845 usage(); 846 847 if (!opt_c && !opt_w) 848 opt_c = opt_w = TRUE; 849 850 my_fd = save_tty_settings(&mode, TRUE); 851 oldmode = mode; 852 #ifdef TERMIOS 853 ospeed = (NCURSES_OSPEED) cfgetospeed(&mode); 854 #elif defined(EXP_WIN32_DRIVER) 855 ospeed = 0; 856 #else 857 ospeed = (NCURSES_OSPEED) mode.sg_ospeed; 858 #endif 859 860 if (same_program(_nc_progname, PROG_RESET)) { 861 reset_start(stderr, TRUE, FALSE); 862 reset_tty_settings(my_fd, &mode, noset); 863 } else { 864 reset_start(stderr, FALSE, TRUE); 865 } 866 867 ttype = get_termcap_entry(my_fd, *argv); 868 869 if (!noset) { 870 #if HAVE_SIZECHANGE 871 if (opt_w) { 872 NCURSES_INT2 my_rows = lines; 873 NCURSES_INT2 my_cols = columns; 874 set_window_size(my_fd, &my_rows, &my_cols); 875 lines = my_rows; 876 columns = my_cols; 877 } 878 #endif 879 if (opt_c) { 880 set_control_chars(&mode, terasechar, intrchar, tkillchar); 881 set_conversions(&mode); 882 883 if (!noinit) { 884 if (send_init_strings(my_fd, &oldmode)) { 885 const char *name; 886 887 (void) putc('\r', stderr); 888 (void) fflush(stderr); 889 if (IsRealTty(my_fd, name)) { 890 (void) napms(1000); /* Settle the terminal. */ 891 } 892 } 893 } 894 895 update_tty_settings(&oldmode, &mode); 896 } 897 } 898 899 if (noset) { 900 (void) printf("%s\n", ttype); 901 } else { 902 if (showterm) 903 (void) fprintf(stderr, "Terminal type is %s.\n", ttype); 904 /* 905 * If erase, kill and interrupt characters could have been 906 * modified and not -Q, display the changes. 907 */ 908 if (!quiet) { 909 print_tty_chars(&oldmode, &mode); 910 } 911 } 912 913 if (Sflag) 914 err("The -S option is not supported under terminfo."); 915 916 if (sflag) { 917 print_shell_commands(ttype); 918 } 919 920 ExitProgram(EXIT_SUCCESS); 921 } 922